Direct Growth of Aligned Carbon Nanotubes on Quartz Fibers for Structural Epoxy Composites

Jin, Lei; Zhang, Ling; Su, Danhua; Li, Chunzhong

doi:10.1021/ie202306v

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…vacuum suction method we mentioned in previous work 21 and cured at 90 C for 30 min. These nal aerogel-PDMS composites had approximately the same dimensions as the original aerogels.…”

Section: Fabrication Of Qmca and Its Compositementioning

confidence: 99%

Highly conductive and flexible polymer composites with improved mechanical and electromagnetic interference shielding performances

et al. 2014

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New flexible and conductive materials (FCMs) comprising a quartz fiber cloth (QFC) reinforced multi-walled carbon nanotubes (MWCNTs)-carbon aerogel (QMCA) and poly(dimethylsiloxane) (PDMS) have been successfully prepared. The QMCA-PDMS composite with a very low loading of MWCNTs (∼1.6 wt%) demonstrates enhanced performance in tensile strength (129.6 MPa), modulus (3.41 GPa) and electromagnetic interference (EMI) shielding efficiency (SE) (∼16 dB in X-band (8.2-12.4 GHz) region). Compared to the QC (where MWCNTs were simply deposited on the QFCs without forming aerogel networks) based PDMS composite, a ∼120%, 330% and 178% increase of tensile strength, modulus, and EMI SE was obtained, respectively. Moreover, the EMI SE of the QMCA-PDMS composite can further reach 20 dB (a SE level needed for commercial applications) with only 2 wt% MWCNTs. Furthermore, the conductivity of the QMCA-PDMS laminate can reach 1.67 S cm(-1) even with very low MWCNTs (1.6 wt%), which still remains constant even after 5000 times bending and exhibits an increase of ∼170% than that of MWCNT-carbon aerogel (MCA)-PDMS at 20% strain. Such intriguing performances are mainly attributed to their unique networks in QMCA-PDMS composites. In addition, these features can also protect electronics against harm from external forces and EMI, giving the brand-new FCMs huge potential in next-generation devices, like E-skin, robot joints and so on.

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“…vacuum suction method we mentioned in previous work 21 and cured at 90 C for 30 min. These nal aerogel-PDMS composites had approximately the same dimensions as the original aerogels.…”

Section: Fabrication Of Qmca and Its Compositementioning

confidence: 99%

Highly conductive and flexible polymer composites with improved mechanical and electromagnetic interference shielding performances

et al. 2014

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“…The increased inter-fiber spacing at lower fiber volume fractions will reduce this stress [8,19] and significantly higher than 0.01 S/cm reported for CNT-modified quartz/epoxy laminates prepared by CVD [52]. Interestingly, in aligned-polymer nanocomposites with 20% V CNT /V M the conductivity was about 0.5 S/cm [60].…”

Section: Flexure Testingmentioning

confidence: 78%

“…3 and higher than IFSS values from CNTtreated single fiber tests between 17 and 24 MPa [7]. The strength improvement is greater than the 15% increase in interlaminar shear strength (ILSS) reported for CNTquartz/epoxy laminates prepared by CVD [52] or the 33% increase in ILSS reported for CNT/epoxy resin infused glass fabric [10]. Analysis of the fracture surfaces ( Fig.…”

Section: In-plane Shear Testingmentioning

confidence: 97%

Hierarchical composites with high-volume fractions of carbon nanotubes: Influence of plasma surface treatment and thermoplastic nanophase-modified epoxy

Rider

Yeo

Gopalakrishna

et al. 2015

Carbon

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A scaled-up catalytic chemical vapor deposition synthesis approach has been used to grow carbon nanotubes (CNTs) onto quartz and alumina fibers to prepare novel hierarchically structured composites with high volume fractions of CNTs. The assynthesized CNT-coated fibers were functionalized using atmospheric oxygen plasma, prior to infusing an epoxy polymer matrix, in order to improve wettability and bonding.The polymer matrix was further modified by adding a triblock copolymer to provide nanoscale toughening. Direct adhesion tests show that CNT and plasma treatments increase the shear strength of quartz or alumina/epoxy films by 30%. CNT-quartz/epoxy composites show an 80% increase in the in-plane shear strength while the CNTalumina/epoxy composites show more than a three-fold increase in shear strength. The failure mechanisms of the films and the fiber composites are dominated by fracture through the catalytic iron nanoparticles and the improvements are limited by the CNT to fiber adhesion. The composites also have very high in-plane electrical conductivity, 2 over 3 S/cm. The carbon nanotubes form a piezoresistive sensing network surrounding the fibers. Under flexural loading the change in electrical resistance can detect damage initiation and impending fracture, particularly for the alumina composites.

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“…However, direct introducing NAs onto glass fiber is difficult to carry out because of weak interaction between GF and NAs, which will seriously weaken nucleating ability of fiber surface due to NAs detachment. In recent years, carbon nanotube (CNT) is generally introduced onto fiber surface to improve interfacial properties in other FRP systems because it easily tangles to form network on fiber surface . It has been reported that CNT presents the nucleating ability in PP crystallization .…”

Section: Introductionmentioning

confidence: 99%

Transcrystalline induced by MWCNTs and organic nucleating agents at the interface of glass fiber/polypropylene

Fang

Zhang

et al. 2017

Polymer Composites

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The interfacial crystallization at glass fiber/PP interface in the presence of multiwalled cabon nanotubes (MWCNTs) and organic nucleating agents (NAs) along fiber surface was investigated in this study. MWCNTs and NAs formed a uniform coating layer on glass fiber surface via dipping in well‐dispersed MWCNTs and NAs aqueous dispersions. Transcrystalline (TC) structure formed by the strong nucleating ability of MWCNTs/NAs coated glass fiber surface. There existed a detectable difference in TC structure induced by coated glass fiber with different surface components. We found that a more sufficient and higher density transcrystalline (TC) structure can be constructed by introducing MWCNTs in combination with sodium benzoate (SB) or TMB‐5 onto fiber surface. Interfacial adhesion was evaluated by interfacial shear strength (IFSS) and morphologies at interfacial region after microdroplet test. The result shows that the MWCNTs/NAs coated glass fiber relates to better interfacial adhesion indicating that enhanced interfacial adhesion derives from the sufficient and high density TC structure induced by MWCNTs and NAs. Our current work provides an effective pathway to construct TC structure and further enhances interfacial adhesion of glass fiber/polypropylene composites. POLYM. COMPOS., 39:3424–3433, 2018. © 2017 Society of Plastics Engineers

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Direct Growth of Aligned Carbon Nanotubes on Quartz Fibers for Structural Epoxy Composites

Cited by 11 publications

References 31 publications

Highly conductive and flexible polymer composites with improved mechanical and electromagnetic interference shielding performances

Highly conductive and flexible polymer composites with improved mechanical and electromagnetic interference shielding performances

Hierarchical composites with high-volume fractions of carbon nanotubes: Influence of plasma surface treatment and thermoplastic nanophase-modified epoxy

Transcrystalline induced by MWCNTs and organic nucleating agents at the interface of glass fiber/polypropylene

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